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Signs & symbols
3D
Free 3d Glossy Interface Icon Set
checkmark, Accept, Check
LimeGreen
80x80
Attention, Error, cautious
Black
64x64
warning, danger, Alert
Prompt, danger, exclamation
yes, ok, Check
Lavender
Message, help, Prompt
OrangeRed
Prompt, help, danger
Accept, ready, tick
Computer & hardware
Smooth
Crystal Project
node, for, stock
16x16
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for, node, stock
24x24
Business & finance
Glyph
Minicons Free
mark, Check
43x43
Keyboard keys
question, mark
Gainsboro
128x128
UI
Mimi Glyphs
Check, mark
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Avatars & smileys
Superhero Avatars
Man, Iii, mark
512x512
Man, Vi, mark
mark, iv, Man
iron, mark, Man
Man, iron, mark
iron, Man, mark
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Mixed
Webtoys
mark, question
SkyBlue
Pixel
Blueberry
mark, Blue, flag
CornflowerBlue
32x32
mark, flag, gray
flag, red, mark
violet, flag, mark
MediumOrchid